CN215209118U - Hot press molding equipment - Google Patents
Hot press molding equipment Download PDFInfo
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- CN215209118U CN215209118U CN202023000296.7U CN202023000296U CN215209118U CN 215209118 U CN215209118 U CN 215209118U CN 202023000296 U CN202023000296 U CN 202023000296U CN 215209118 U CN215209118 U CN 215209118U
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Abstract
A hot press molding device comprises a preheating module and a molding module, wherein the preheating module is used for preheating a product, and the molding module is used for hot press molding the preheated product; the preheating module comprises a plurality of preheating modules which are sequentially arranged, the plurality of preheating modules comprise a first type of preheating module and a second type of preheating module, the first type of preheating module comprises an electric heating pipe and a linear infrared heat pipe which are arranged in the vertical direction, and the second type of preheating module comprises an electric heating pipe and a U-shaped infrared heat pipe which are arranged in the vertical direction; the second type of preheating module is closer to the forming module, and the first type of preheating module is farther from the forming module. According to the hot-press forming equipment, the U-shaped infrared heat pipe is arranged to heat the periphery of the product, so that the temperature of the peripheral forming area of the product is higher than that of the center of the product, the whole product is in a non-isothermal state, the temperature of the non-forming area of the product can be effectively reduced, and the non-forming surface of the product is prevented from being rough.
Description
Technical Field
The application relates to the field of thermal forming, in particular to hot-press forming equipment.
Background
In the production process of panel glass such as a mobile phone, a tablet computer and the like, the material glass is usually put into a forming die, and after multi-station gradual heating, temperature rise, forming and temperature reduction, the material glass is molded, but electric heating pipes are adopted for heating, the temperature of the die is the same as or close to that of each part of the material glass, so that the defect that the non-forming surface of the material glass is rough is easily caused, and particularly, the defect is more serious in the hot-press forming of 2.5D glass or 3D glass.
SUMMERY OF THE UTILITY MODEL
In view of the above, it is desirable to provide a hot press molding apparatus capable of preventing the non-molding surface of the material glass from being rough.
An embodiment of the present application provides a hot briquetting device, includes: the device comprises a preheating module and a forming module, wherein the preheating module is used for preheating a product, and the product comprises any one of 2.5D glass and 3D glass; the molding module is used for carrying out hot press molding on the preheated product; the preheating module comprises a plurality of preheating modules which are sequentially arranged, the plurality of preheating modules comprise a first type of preheating module and a second type of preheating module, the first type of preheating module comprises an electric heating pipe and a linear infrared heat pipe which are arranged in the vertical direction, and the second type of preheating module comprises an electric heating pipe and a U-shaped infrared heat pipe which are arranged in the vertical direction; the preheating module of the second type is closer to the forming module, and the preheating module of the first type is farther from the forming module.
Further, in some embodiments of this application, the module of preheating of first type includes that the first of arranging in proper order sets up preheats module and second and preheats the module, the module of preheating of second type is including arranging in proper order the third of setting and preheating module, fourth and the fifth module of preheating, first preheat the module with the second preheats the module and all includes the electric heating pipe that is located the lower part and the straight line infrared heat pipe that is located the upper portion, the third preheats the module the fourth preheat the module with the fifth preheat the module and all include the electric heating pipe that is located the lower part and the U type infrared heat pipe that is located the upper portion.
Further, in some embodiments of the present application, the preheating temperature of the first preheating module is 250 ℃ to 350 ℃, and the preheating temperature of the second preheating module is 350 ℃ to 450 ℃.
Further, in some embodiments of the present application, the preheating temperature of the third preheating module is 450 to 550 ℃, the preheating temperature of the fourth preheating module is 550 to 650 ℃, and the preheating temperature of the fifth preheating module is 650 to 750 ℃.
Further, in some embodiments of the present application, the preheating module provided with the U-shaped infrared heat pipe includes a driving member, a connecting rod, a heat insulating plate, and a connecting plate, one end of the connecting rod is connected to the driving member and the other end is connected to the heat insulating plate, and the connecting plate is installed on one side of the heat insulating plate deviating from the connecting rod and is installed with the U-shaped infrared heat pipe.
Further, in some embodiments of the present application, the heat insulation plate is a hollow structure, and the heat insulation plate is provided with a water inlet pipe and a water outlet pipe communicated with the inside of the heat insulation plate for circulating a cooling medium in the heat insulation plate.
Further, in some embodiments of the present application, the preheating module further includes a plurality of protection plates disposed at a peripheral side of the connection plate.
Further, in some embodiments of this application, it is a plurality of relative two in the guard plate the respective lateral wall of guard plate is equipped with the installation department, be equipped with in the installation department connect in the installing support of connecting plate, the installing support is used for the installation the infrared heat pipe of U type.
Further, in some embodiments of the present application, two openings of the U-shaped infrared heat pipe are oppositely disposed on the connecting plate to form a rectangular heating frame for preheating the periphery of the product.
Further, in some embodiments of the present application, the preheating module further includes a mounting plate and a support bar installed at a corner of the mounting plate, and the driving member is installed on the mounting plate and fixes a position of the driving member by the support bar.
Foretell hot briquetting equipment preheats step by step of different temperature ranges to the product through setting up a plurality of modules of preheating to through setting up U type infrared heat pipe, heat the periphery of product, make the temperature in the shaping region all around of product higher than the temperature at center, and then make the whole non-isothermal state that is in of product, can effectively reduce the regional temperature of product non-shaping, avoid product non-shaping surface roughness, reduce the work load of subsequent polishing operation, and reduced the product quality defect that non-shaping region leads to because of the high temperature softening.
Drawings
Fig. 1 illustrates a schematic structural diagram of a hot press molding apparatus in an embodiment.
FIG. 2 is a schematic diagram illustrating an upper structure of a preheating module provided with a U-shaped infrared heat pipe in an embodiment.
FIG. 3 is a schematic top exploded view of a pre-heating module with a U-shaped IR heat pipe according to an embodiment.
Description of the main elements
Hot press molding apparatus 100
Driving member 131
Connecting rod 132
Connecting plate 134
U-shaped infrared heat pipe 135
Heating rack 135a
Supporting bar 137
Guard plate 138
Molding die set 20
Carrying rack 30
First slowly-cooling module 51
Second Slow Cooling Module 52
Mold 200
The following specific examples will further illustrate the application in conjunction with the above figures.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments.
It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.
At present, curved glass such as 2.5D glass or 3D glass has been increasingly used in electronic devices such as mobile phones, tablets, computers, and the like. Typically, processing curved glass involves: the flat blank glass is placed in a forming die, the forming die is uniformly heated from the upper side and the lower side, the temperature is raised to a certain temperature close to the softening point of the glass, and then the glass is formed by applying pressure and the like. However, in this processing method, since the temperatures of the mold and the flat blank glass are high, when the periphery of the flat blank glass, which is a molding region, is bent, the temperature of the central region of the flat blank glass, which is a non-molding region, is the same as or close to that of the molding region, and quality defects such as pitting and deformation occur in the non-molding region.
In view of this, an embodiment of the present application provides a hot press forming apparatus including: the preheating module is used for preheating a product, and the product comprises any one of 2.5D glass and 3D glass; the molding module is used for carrying out hot press molding on the preheated product; the preheating module comprises a plurality of preheating modules which are sequentially arranged, the plurality of preheating modules comprise a first type of preheating module and a second type of preheating module, the first type of preheating module comprises an electric heating pipe and a linear infrared heat pipe which are arranged in the vertical direction, and the second type of preheating module comprises an electric heating pipe and a U-shaped infrared heat pipe which are arranged in the vertical direction; the second type of preheating module is closer to the forming module, and the first type of preheating module is farther from the forming module.
Foretell hot briquetting equipment preheats step by step of different temperature ranges to the product through setting up a plurality of modules of preheating to through setting up U type infrared heat pipe, heat the periphery of product, make the temperature in the shaping region all around of product higher than the temperature at center, and then make the whole non-isothermal state that is in of product, can effectively reduce the regional temperature of product non-shaping, avoid product non-shaping surface roughness, reduce the work load of subsequent polishing operation, and reduced the product quality defect that non-shaping region leads to because of the high temperature softening.
Some embodiments of the present application will be described in detail below with reference to the accompanying drawings.
Referring to fig. 1, a hot press molding apparatus 100 is shown for hot press molding a product, where the product includes any one of 2.5D glass and 3D glass, and the product may also be plastic, silicone, etc., as long as there is a requirement that the temperature of a non-molding region and the temperature of a molding region need to be differentiated during the processing. The hot press forming equipment 100 comprises a preheating module 10 and a forming module 20 which are sequentially arranged, the preheating module 10 is used for preheating a product, and the forming module 20 is used for hot press forming the preheated product. It is understood that the product is set in the corresponding molding die during the preheating and hot press molding of the product.
In an embodiment, the preheating module 10 includes a plurality of preheating modules arranged in sequence, wherein the part of the preheating modules far away from the forming module 20 (also referred to as the first type of preheating module, far away from the forming module 20) includes electric heating tubes and linear infrared heat pipes arranged along the vertical direction, and the part of the preheating modules near the forming module 20 (also referred to as the second type of preheating module, near to the forming module 20) includes electric heating tubes and U-shaped infrared heat pipes arranged along the vertical direction. The preheating modules sequentially preheat the product stage by stage.
The hot press molding apparatus 100 further includes a carrier frame 30 and a conveying mechanism 40 disposed on the carrier frame 30, wherein the conveying mechanism 40 is used for carrying the product and transferring the product to a position corresponding to the preheating module 10 and the molding module 20. The electric heating pipes of the preheating module are arranged on the bearing rack 30 and located below the conveying mechanism 40 and used for enabling products in the mold to be at a preparation temperature required by processing, the linear infrared heat pipes and the U-shaped infrared heat pipes of the preheating module are located above the conveying mechanism 40, and the linear infrared heat pipes and the U-shaped infrared heat pipes of the preheating module move towards the corresponding electric heating pipes to preheat the products in the mold transferred by the conveying mechanism 40. It is understood that the hot press molding apparatus 100 further includes a housing (not shown) disposed on the carrier frame 30 for accommodating the preheating module 10, the molding module 20 and the conveying mechanism 40 in an accommodating space formed by the housing and the carrier frame 30.
In one embodiment, the preheating module 10 includes a first preheating module 11, a second preheating module 12, a third preheating module 13, a fourth preheating module 14, and a fifth preheating module 15, which are sequentially arranged. As the first type of preheating module, the first preheating module 11 and the second preheating module 12 each include a linear infrared heat pipe located above the conveying mechanism 40 and an electric heating pipe located below the corresponding conveying mechanism 40. As the second type of preheating module, the third preheating module 13, the fourth preheating module 14, and the fifth preheating module 15 each include a U-shaped infrared heat pipe located above the conveying mechanism 40 and an electric heating pipe located below the corresponding conveying mechanism 40.
In one embodiment, the preheating temperature of the first preheating module 11 is 250 to 350 ℃, the preheating temperature of the second preheating module 12 is 350 to 450 ℃, the preheating temperature of the third preheating module 13 is 450 to 550 ℃, the preheating temperature of the fourth preheating module 14 is 550 to 650 ℃, and the preheating temperature of the fifth preheating module 15 is 650 to 750 ℃. It is understood that the temperature of each preheating module of the preheating module 10 can be adjusted according to the forming temperature required by the corresponding product, and is not limited to the above definition.
The above-mentioned electric heating tube may employ a conventional heating rod, and a description of its configuration will be omitted herein. The linear infrared heat pipe and the U-shaped infrared heat pipe can respectively adopt a linear infrared lamp tube and a U-shaped infrared lamp tube, and the two types of infrared heat pipes are the same or similar in material, and are mainly different in shape: the linear infrared heat pipe is composed of a plurality of infrared heat pipe assemblies which are arranged in parallel, and the temperature of the whole product can be quickly improved through the infrared radiation of the plurality of infrared heat pipe assemblies, so that the preheating early stage is benefited; the U-shaped infrared heat pipe is composed of a plurality of infrared heat pipe assemblies which are arranged in a surrounding mode (including a surrounding mode of a rectangle, a ring, a triangle and the like), the temperature around the product can be rapidly increased through the infrared radiation of the plurality of infrared heat pipe assemblies, so that the temperature around the product is higher than the temperature in the center of the product, and the U-shaped infrared heat pipe is beneficial to the later preheating stage. Therefore, for the sake of simplicity, only the structure of the preheating module provided with the U-shaped infrared heat pipe will be described below.
Referring to fig. 2 and 3, fig. 2 is a schematic diagram of an upper structure of a preheating module provided with a U-shaped infrared heat pipe, and fig. 3 is an exploded schematic diagram of the upper structure shown in fig. 2. Since the U-shaped infrared heat pipes in the third preheating module 13, the fourth preheating module 14 and the fifth preheating module 15 have the same structure, and the connection structures of the U-shaped infrared heat pipes in the three preheating modules are similar, the common structure of the three preheating modules will be described by taking the third preheating module 13 as an example for the sake of simplicity. As shown in fig. 2 and 3, the third preheating module 13 includes a driving member 131, a connecting rod 132, an insulation plate 133, and a connection plate 134. One end of the connecting rod 132 is connected with the driving member 131, the other end is fixed to the heat insulation plate 133, one side of the heat insulation plate 133 departing from the connecting rod 132 is connected with the connecting plate 134, and one side of the connecting plate 134 departing from the heat insulation plate 133 is provided with the U-shaped infrared heat pipe 135. The connecting rod 132 is driven by the driving member 131 to move towards the corresponding position of the electric heating pipe, so that the connecting plate 134 drives the U-shaped infrared heat pipe to move towards the corresponding position of the electric heating pipe, and the product in the mold is preheated by the U-shaped infrared heat pipe 135.
The driving member 131 is further provided with a mounting plate 136 and a support bar 137, one end of the driving member 131 is fixed to the mounting plate 136 and the driving shaft of the driving member 131 passes through the mounting plate 136 to be connected to the connecting rod 132. The support bar 137 is fixed to a corner position of the mounting plate 136 and extends toward a position of the connection bar 132. In one embodiment, the number of the support rods 137 is 4, and the support rods are respectively disposed at four corner positions of the mounting plate 136 for fixing the driving member 131 to a top plate inside the housing of the thermoforming apparatus 100 or an outer wall of the housing.
In one embodiment, the heat insulation board 133 has a hollow structure, a cooling medium, such as cooling water, flows inside the heat insulation board 133, a water inlet pipe 1331 and a water outlet pipe 1332 are disposed on an outer wall of the heat insulation board 133 to communicate with the inside of the heat insulation board 133, and the cooling medium flows inside the heat insulation board 133 through the water inlet pipe 1331 and the water outlet pipe 1332 to take away heat, thereby ensuring the heat insulation performance of the heat insulation board 133. It is understood that the number of the insulation boards 133 is not limited to one in the present embodiment, and may be increased according to the insulation requirement, such as two, three, etc.
In one embodiment, the connection plate 134 is further provided with a plurality of protection plates 138 having heat resistance, and the plurality of protection plates 138 are fixed on the peripheral side of the connection plate 134 to form mounting grooves in cooperation with the connection plate 134 for mounting the U-shaped infrared heat pipes 135. Wherein the lateral wall of two relative guard plates 138 is equipped with installation department 1381 respectively, each installation department 1381 is sunken to one side of heat insulating board 133 by the lateral wall of guard plate 138 and forms, all install installing support 1382 in each installation department 1381, installing support 1382 is used for installing U type infrared heat pipe 135, U type infrared heat pipe 135's both ends are installed respectively on installing support 1382 and the setting of protrusion guard plate 138, be convenient for U type infrared heat pipe 135 connects outside power supply unit, this power supply unit is used for supplying power for U type infrared heat pipe 135, with the infrared radiation temperature who guarantees U type infrared heat pipe 135. In one embodiment, a heat resistant layer is further disposed on a side of the protection plate 138 facing the U-shaped infrared heat pipe 135 to improve the heat resistance of the protection plate 138.
In one embodiment, the openings of the two U-shaped infrared heat pipes 135 are oppositely disposed in the mounting groove, and both ends of each U-shaped infrared heat pipe 135 are disposed on the mounting bracket 1382, so as to form a rectangular heating frame 135a by enclosing the two U-shaped infrared heat pipes 135. When heating, the mould is in the rectangle heating frame 135a, the rectangle heating frame 135a encircles the mould 200, preheat fast around the product in the mould 200, because the heat is conducted from the periphery to the center of mould 200, the temperature of the shaping region around the product is higher than the temperature of the center, make the whole product be in the state of non-isothermality, can effectively reduce the temperature of the non-shaping region of product, avoid the non-shaping surface roughness of product, reduce the work load of subsequent polishing operation, and reduced the product quality defect that the non-shaping region leads to because of the high temperature softening.
It is understood that when the shape of the product changes, the shape of the U-shaped infrared heat pipe 135 may also change as long as the product is heated around the product.
It should be noted that the product preheated by the preheating module 10 is transferred to the forming module 20 by the conveying mechanism 40 for hot press forming, the forming temperature of the forming module 20 is, for example, 750 ℃ to 900 ℃, and the temperature range depends on the material, model, etc. of the product (for example, glass).
Additional components of the thermoforming apparatus 100 will now be described with reference again to fig. 1. As shown in fig. 1, the hot press forming apparatus 100 further includes a slow cooling module 50 and a rapid cooling module 60, which are sequentially disposed, for cooling the hot pressed product of the forming module 20 to form a final product.
In one embodiment, the creep-cooling module 50 includes a first creep-cooling module 51 and a second creep-cooling module 52, and the quench module 60 includes a first quench module 61 and a second quench module 62. The first slow cooling module 51, the second slow cooling module 52, the first fast cooling module 61 and the second fast cooling module 62 are sequentially arranged, the cooling temperature of the first slow cooling module 51 is 750-530 ℃, the cooling temperature of the second slow cooling module 52 is 530-450 ℃, the cooling temperature of the first fast cooling module 61 is 450-300 ℃, and the cooling temperature of the second fast cooling module 62 is 300-200 ℃. For example, first quench module 61 and second quench module 62 are water cooled.
In one embodiment, the thermoforming apparatus 100 further includes an external cooling module (not shown) for further cooling the product. The external cooling module comprises a first external cooling module and a second external cooling module, the cooling temperature of the first external cooling module is 200-100 ℃, and the cooling temperature of the second external cooling module is 50-normal temperature. For example, the external cooling module is also water cooled.
Foretell hot briquetting equipment 100 preheats the product step by step of different temperature ranges through setting up a plurality of modules of preheating to through setting up U type infrared heat pipe 135, heat the periphery of product, make the temperature in the shaping region all around of product higher than the temperature at center, and then make the whole state that is in non-isothermal state of product, can effectively reduce the regional temperature of product non-shaping, avoid product non-shaping surface roughness, reduce the work load of subsequent polishing operation, and reduced the product quality defect that non-shaping region leads to because of the high temperature softening.
It should be understood by those skilled in the art that the above embodiments are only for illustrating the present application and are not to be taken as limiting the present application, and that suitable changes and modifications to the above embodiments are within the scope of the present disclosure as long as they are within the spirit and scope of the present application.
Claims (10)
1. A hot press molding apparatus comprising:
the preheating module is used for preheating a product, wherein the product comprises any one of 2.5D glass and 3D glass;
the molding module is used for carrying out hot press molding on the preheated product;
it is characterized in that the preparation method is characterized in that,
the preheating module comprises a plurality of preheating modules which are sequentially arranged, the plurality of preheating modules comprise a first type of preheating module and a second type of preheating module, the first type of preheating module comprises an electric heating pipe and a linear infrared heat pipe which are arranged in the vertical direction, and the second type of preheating module comprises an electric heating pipe and a U-shaped infrared heat pipe which are arranged in the vertical direction; the preheating module of the second type is closer to the forming module, and the preheating module of the first type is farther from the forming module.
2. The hot press molding apparatus according to claim 1, wherein the first type preheating module comprises a first preheating module and a second preheating module which are sequentially arranged, the second type preheating module comprises a third preheating module, a fourth preheating module and a fifth preheating module which are sequentially arranged, the first preheating module and the second preheating module each comprise an electric heating pipe located at a lower portion and a linear infrared heat pipe located at an upper portion, and the third preheating module, the fourth preheating module and the fifth preheating module each comprise an electric heating pipe located at a lower portion and a U-shaped infrared heat pipe located at an upper portion.
3. The hot press molding apparatus according to claim 2, wherein the preheating temperature of the first preheating module is 250 ℃ to 350 ℃, and the preheating temperature of the second preheating module is 350 ℃ to 450 ℃.
4. The hot press molding apparatus according to claim 2 or 3, wherein the preheating temperature of the third preheating module is 450 ℃ to 550 ℃, the preheating temperature of the fourth preheating module is 550 ℃ to 650 ℃, and the preheating temperature of the fifth preheating module is 650 ℃ to 750 ℃.
5. The thermoforming apparatus as claimed in claim 1, wherein the preheating module provided with the U-shaped infrared heat pipe includes a driving member, a connecting rod, a heat insulating plate, and a connecting plate, one end of the connecting rod is connected to the driving member and the other end is connected to the heat insulating plate, and the connecting plate is installed on a side of the heat insulating plate away from the connecting rod and is provided with the U-shaped infrared heat pipe.
6. The thermoforming apparatus as claimed in claim 5, wherein the heat-insulating plate has a hollow structure, and the heat-insulating plate is provided with a water inlet pipe and a water outlet pipe communicating with the inside of the heat-insulating plate for circulating a cooling medium inside the heat-insulating plate.
7. The hot press forming apparatus as claimed in claim 5, wherein the preheating module further comprises a plurality of shielding plates provided on a peripheral side of the connecting plate.
8. The thermoforming apparatus as claimed in claim 7, wherein the side walls of two opposite protection plates of the plurality of protection plates are provided with mounting portions, and mounting brackets connected to the connecting plate are provided in the mounting portions, and the mounting brackets are used for mounting the U-shaped infrared heat pipes.
9. The thermoforming apparatus as claimed in claim 8, wherein the two U-shaped openings are oppositely disposed on the connecting plate to form a rectangular heating frame for preheating the periphery of the product.
10. The apparatus of claim 5, wherein the preheating module further comprises a mounting plate and support bars installed at corners of the mounting plate, and the driving member is installed on the mounting plate and fixed in position by the support bars.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023000296.7U CN215209118U (en) | 2020-12-09 | 2020-12-09 | Hot press molding equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023000296.7U CN215209118U (en) | 2020-12-09 | 2020-12-09 | Hot press molding equipment |
Publications (1)
| Publication Number | Publication Date |
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| CN215209118U true CN215209118U (en) | 2021-12-17 |
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| CN202023000296.7U Active CN215209118U (en) | 2020-12-09 | 2020-12-09 | Hot press molding equipment |
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| CN (1) | CN215209118U (en) |
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Effective date of registration: 20220124 Address after: 451162 the second and third floors of building B07, zone B, comprehensive bonded zone, east side of Zhenxing Road, Hangkong District, Zhengzhou City, Henan Province Patentee after: HENAN YUZHAN PRECISION TECHNOLOGY Co.,Ltd. Address before: 450000 no.4401 Shangdu Road, Baisha Town, Zhongmou County, Zhengzhou City, Henan Province Patentee before: FUSHIRUI PRECISION INDUSTRY (ZHENGZHOU) Co.,Ltd. |
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Address after: 451162 the second and third floors of building B07, zone B, comprehensive bonded zone, east side of Zhenxing Road, Hangkong District, Zhengzhou City, Henan Province Patentee after: Fulian Yuzhan Technology (Henan) Co.,Ltd. Address before: 451162 the second and third floors of building B07, zone B, comprehensive bonded zone, east side of Zhenxing Road, Hangkong District, Zhengzhou City, Henan Province Patentee before: HENAN YUZHAN PRECISION TECHNOLOGY Co.,Ltd. |
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